Home / 660,932,791.98-991,188,854.27-218,193,036.47

Finding the Fourth Proportional to 660,932,791.98, 991,188,854.27 and 218,193,036.47

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Solution

The fourth proportional to 660,932,791.98, 991,188,854.27 and 218,193,036.47 is: 327,220,117.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    660,932,791.98 : 991,188,854.27 = 218,193,036.47 : x
  2. Step 2: Convert to fraction form
    660,932,791.98/991,188,854.27 = 218,193,036.47/x
  3. Step 3: Cross multiply
    660,932,791.98x = 991,188,854.27 × 218,193,036.47
  4. Step 4: Simplify right side
    660,932,791.98x = 216,270,505,828,391,616
  5. Step 5: Solve for x
    x = 216,270,505,828,391,616/660,932,791.98
  6. Step 6: Final answer
    x = 327,220,117.47

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.